/*  This file is part of YUView - The YUV player with advanced analytics toolset
*   <https://github.com/IENT/YUView>
*   Copyright (C) 2015  Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
*
*   This program is free software; you can redistribute it and/or modify
*   it under the terms of the GNU General Public License as published by
*   the Free Software Foundation; either version 3 of the License, or
*   (at your option) any later version.
*
*   In addition, as a special exception, the copyright holders give
*   permission to link the code of portions of this program with the
*   OpenSSL library under certain conditions as described in each
*   individual source file, and distribute linked combinations including
*   the two.
*   
*   You must obey the GNU General Public License in all respects for all
*   of the code used other than OpenSSL. If you modify file(s) with this
*   exception, you may extend this exception to your version of the
*   file(s), but you are not obligated to do so. If you do not wish to do
*   so, delete this exception statement from your version. If you delete
*   this exception statement from all source files in the program, then
*   also delete it here.
*
*   This program is distributed in the hope that it will be useful,
*   but WITHOUT ANY WARRANTY; without even the implied warranty of
*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*   GNU General Public License for more details.
*
*   You should have received a copy of the GNU General Public License
*   along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include <QWidget>

#include "playlistTreeWidget.h"
#include "video/videoCache.h"

namespace videoCacheStatusWidgetNamespace
{
  class videoCacheStatusWidget : public QWidget
  {
    Q_OBJECT

    public:
    videoCacheStatusWidget(QWidget *parent) : QWidget(parent), cacheLevelMB(0), cacheRateInBytesPerMs(0), cacheLevelMaxMB(0) {}
    // Override the paint event
    virtual void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
    void updateStatus(PlaylistTreeWidget *playlistWidget, unsigned int cacheRate);
    private:
    // The floating point values (0 to 1) of the end positions of the blocks to draw
    QList<float> relativeValsEnd;
    unsigned int cacheLevelMB;
    unsigned int cacheRateInBytesPerMs;
    int64_t cacheLevelMaxMB;
  };
}

class VideoCacheInfoWidget : public QWidget
{
  Q_OBJECT

public:
  VideoCacheInfoWidget(QWidget *parent = 0);

  void setPlaylistAndCache(PlaylistTreeWidget *plist, videoCache *vCache) { playlist = plist; cache = vCache; };

public slots:
  void onUpdateCacheStatus();

private slots:
  void onGroupBoxToggled(bool on);

private:
  videoCacheStatusWidgetNamespace::videoCacheStatusWidget *statusWidget {nullptr};
  QLabel *cachingInfoLabel {nullptr};

  PlaylistTreeWidget *playlist {nullptr};
  videoCache *cache {nullptr};

  unsigned int cacheRateInBytesPerMs {0};
};
